Service difficulty report · Battery Pack · Boeing 7377H4

Difficulty date
July 16, 2023
Submitted
August 14, 2023
Operation
Air carrier
Aircraft
N444WN
Make and model
Boeing 7377H4
Aircraft serial
29839
Aircraft time
66,457 hours, 39,411 cycles
Part
Battery Pack
Part number
UNKNOWN
Condition
Inoperative
Location
Zn 200 Fus Top
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EMERGENCY LIGHTS ARE INOPERATIVE AT 11CB;9 CBA; 4 CBA; AND R-1 DOOR<[01] REMOVED AND REPLACED POWER SUPPLY - BATTERY PACK M1675 AND M1670 AS PER REF AMM 33-51-06-960-805. TEST FOUND NORMAL.;[02] INSP. VERIFIED ENTRY #1 WAS WORK ACCOMPLISHED .

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